johnson



A. JDHNSON. APPARATUS FOR DOUBLE SEAMENG COVERS T0 CAN BODIES.

APPUCATIUN fILiD MN- 31. IQIB.

N m m 7m E M s 0 V O m ffi dm A m: m .m M Jw t h n n v. A B Y 1 6 2 97.3 s a a \3 2 11 4. \l 1 .2 l4... M 7 #4 0 2 9, M 5 w i N .3 wn 1 9 M 2A. JOHNSON.

APPARATUS FORDOUBLE smoms COVERS T0 CAN BODIES.

APPLICAHON EILED JAN- 3l. i918.

1,317,977. Patented 0m. 7,1919.

3 SHEETS-SHEET 2.

42 BY J/EW A. JOHNSON.

APPARATUS ron DOUBLE SEAMING covsns T0 CAN BOOM-18..

APPLICAUON HLED MN. 3|. 9H3.

1,317,977. Patented 001;. 7,1919.

3 SHEETS- SHEET 3.

IN VEN TOR.

Q BY (7M -12; A TTORNE Y,

WITNESS.

UNITED STATES PATENT OFFICE.

AIEL JOHNSON, OF OAKLAND, CALIFORNIA, ASBIGNOR T0 AMERICAN CAN COMPANY,

OF SAN FRANCISCO, CALIFORNIA, A CORPORATION OF NEW JERSEY.

APPARATUS FOR DOUBLE-SEAMING COVERS TO CAN-BODIES.

Specification of Letters Patent.

Patented Oct. '7, 1919.

Application filed January 31, 1918. Serial No. 214,657.

To all whom it may concern:

Be it known that I, AXEL .lonusou, a citizen of the United States,residing at Oakland, in the county of Alameda and State of California,have invented certain new and useful Improvements in Apparatus forDouble-seaming (overs to Can-Bodies, of which the following is aspecification.

The hereinafter described invention relates to an apparatus forhermetically sealing can ends or covers to flanged can bodies for thepreservation of food products or other similar materials, and moreparticularly to the means for double seaming the flange of a can coverto the flanged end of a can body, and the. same resides in the improvedconstriu'tion of the can chuck for holding the. cover onto the can bodyduring the seaming operation, and in the construc tion of the seamingroll associated with the chuck for performing the double seamingoperation of uniting the flange of the can cover to the flange of thecan body: the object of the invention being to secure accu racy ofgaging the seaming roll with respect to the can endl chuck. whereby theseaming roll will be relieved of the thrust strains usually placedthereon during the double seaming operation. A very slight error in theadjustment of the rolls relative to the can end chuck will result in theformation of an imperfect or leaky seam between the cover and can endafter the completion of the double seaming operation, and it is highlydesirable to reduce the chances of an occurrence of this result to aminimum, and which in the present case isaccomplished by providing a canend chuck with circumferential grooves in the face thereof arranged indifferent vertical planes, with which coacts successively acircumferential flange outwardly projecting from a double groovedseaming roll, the grooves of which lie in different vertical planes, thesaid flange of the seaming roll successively engaging with the groovesin the can end chuck as the seaming rolls ver tical position is variedto successively place the seaming grooves thereof in radial alinementwith the flange of a can end cover to be hermeticall double seamed tothe flanged end of a can ody.

In order to comprehend the invention, reference should b had to theaccompany ing sheets of dra ings illustrating the invention as appliedto a single spindle double seaming apparatus, wherein- Figure 1 is aplan view of the apparatus illustrating the means associated with theseaming mechanism for delivering. can lmdies \vith ends loosely appliedthereto to the said seaming mechanism.

Fig. 2 is a vertical sectional elevation taken on line 22 of Fig. 1 ofthe drawings andwiewcd in the direction of the arrows.

Fig. 3 is a top plan view partly broken away taken on sectional line3-3, Fig. 2 of the drawings, and viewed in the direction of the arrows.

Fig. 4 is a broken detail vertical sectional view of the housing forinclosing the operat ve means for the seaming mechanism, said v ew beingtaken on the sectional line 4-4, Fig. 3 of the drawings, and viewed inthe direction of the arrows.

Fig. 5 is a sectional plan view taken on line 5 5 of Fig. 2 of thedrawings, and viewed in the direction of the arrows.

Fig. 6 is a sectional lan view taken on the irregular sectional ine 66of Fig. 2 of the drawings, and viewed in the direction of the arrows.

Fig. 7 is a vertical central section of a portion of a can, the chuckand the seaming roll with its lower groove engaged with the can endseam.

Fig. 8 is a similar view with the upper groove on aged with said seam.

In the rawiugs, and referring more particularly to Fig. 2 thereof, thereference numeral is used to designate any suitable fornrof a supportingstructure capable of sustamin the working parts of the appa ratus anwhich preferably has formed integral therewith the circular housing 2,from which housing depends the tubular sleeve 3 through which projectsthe vertical shaft l, which shaft works in upper and lower bearlugs 5and 5, the latter bearing being carried b the cover plate 6 of thehousing 2.

Wit in suitable bearings of the cover plate 6 is mounted for rotation11. horizontally disposed drive shaft 7, which is driven, in the presentcase, through the medium of a belt wheel 8 mounted on one end thereof,which receives its motion from a drive belt, not illustrated, havingpower applied thereto by any suitable source of outside supply. On thedrive shaft 7 is mounted a. gear 9 which meshes with the gear 10 securedto the upper end of the vertical shaft 4, so that the rotation of thedrive shaft 7 through the medium of the intermeshin gears 9 and 10 istransmitted to the said haft 4. To the shaft 4, within the housing 2, issecured in any suitable manner a head 11, which head rotates with thesaid shaft 4 and at its lower end rests on the anti-frictional ballbearlugs 12 interposed; between the plate 12 secured to the bottom ofthe head 11 and the plate 13 secured in any suitable manner within thehousin and to the bottom wall thereof, the said p ates 12 and 13 servingas hearing rings to form atrack-way for the anti frictional balls 12,the said head 11 being sup orted for rotation on the antifrictionalhearings. There is secured to the shaft 4, intermediate the gear 10 andthe head 11, an enlarged cog-ring 14, which meshes with the cog pinion15 secured to the stem 16 of'the can head chuck 17, so that the rotarymovement of the shaft 4 is transmitted to the stem 16 of the can endchuck 17. The stem of the said chuck works within suitable bearingscarried by the housing 2 and within wh ch bearings the stem 16 isvertically movable, the can end chuck 17 being carned by the lower endof the stem 16 projected below the housin of the housing2,

ings. The yok '18 is thus permitted free ingthe rotary movement of Onthe stem 16 of the can end chuck 17 and within the housin 2 is located ayoke 18, Figs. 2, 3, 4 and 5 o the drawings, which yoke is held againstvertical movement on the stem 16 by means of a collar 19 screwed ontothe threaded section 19 of the said stem 16, and the said yoke is heldagainst downward movement relative to the stem- 16 by means of theflange 20 formed integral with the said stem 16, there being inter osedbetween the said Ha 20 and the yo e 18 the anti-frictional bal bearings21. The yoke 18 is held against rotation by means of the lateral proections 22 thereof, each of which projections is formed with 'a verticalbore therethrough which fits over the studs 28 'upwardl proj ectin fromthe base 133. 4 an 5 of the drawvertical movement with the stem 16, butis held against rotation therewith. From the up r portion of the oke 18there is latera y rejected a stu 24 which carries an anti-frictional camfollowing roll 24, which roll works within acam groove 25, formed in theperiphery of the head 11 so that durthe said head 11 the cam groove 25thereof acts relatively to the roll 24 to raise and lower the oke 18. Asthis oke is held against vertica move ment with respect to the stem 16,it is apparent that the said stem is raised and lowered with thevertical movement of the yoke 18.

Adjacent the can end chuck 17 there isloeated a seamitroig head 26,which seaming head is moun upon the lower end of a mum spindle 27journaled for oscillatory and lincal movement at 28 of the housing 2,the said spindle 27 carrying at its upper end a transverse double arm 29(Figs. 2 and 5 of the drawings). The said arm 29 carries upon its endscam following rollers 30 and 3 the former below and the latter above thesaid arm, which said following rollers are ada ted to follow cams 32 and33 respective formed u on the peripheral surface of'tlie rotating ead 11and which cams during the rotary movement of the said head act inconjunction with the rollers 31 and 30 to oscillate the seaming head 26to place the seaming roll 26' carried thereby into operative relationwith the can end chuck 17 for the double seaming of the can end to thecan body.

The seaming head spindle 27 also carries a cam following roller 34 whichis adapted to lie within and follow an offset groove 35 formed in therotary head 11 below the cam groove 25 and between the peripheral cams32 and 33, the said cam groove 35 serving through the medium of the camfollowing roll 34: to raise and lower the spindle 27 of the seaminghead. The seaming head 26 is in the form of a lever extended at rightan- 'gles'from the spindle 27, as shown in Figs.

2 and 6 of the drawings, and carries at its outer end the seaming roll26, which roll is mounted for free rotation within the bifurcatedportion of the said seaming head 26, the said seaming roll being freelyrotatable upon a pin 36. The said seaming roll 26' is formed with twoadjacent peripheral grooves 38 and 38, Figs. 2, 7 and 8 of the drawings,the lower groove 38 performing the first seaming operation upon the canseem, as illustrated in Fig. 7 of the drawings, and the upper groove 88performing the final seaming operation thereon, as disclosed in Fig. 8of'the drawin The seaming roll 26 is provided with an outstanding,clrcumferential flange 39, which is adapted to mo've successively intoand out of the two adjacent peripheral grooves 40 and 40 formed in thecan end chuck 17 As the, flan 39 of the seaming head moves within eitherof the grooves of the can end chuck, the same serves to properly gagethe seeming roll relative ,to the said can end chuck andthe grooves 38and 38' of the said roll 1n to the seam being operated upon there y. Bythis means there is an exact 'ng of the seamin roll with respect to t ecan and chuck head and the seaming grooves 38 and 38' of the said roll29 are accurately positioned relative to the seam to be rated upon.

, It will be understood that the engagement of the flange 39 with thecoves 40 and 40' of the can and chuck 17 es lace while the said chuck isin lowered pggihon to hold the can end 41 onto the can y 42 to which iti a be secured, which body a, the and loosely applied thereto at suchtime is properly positloned relative to the rotatable cam rest 43, 2, 3and 8 of the drawings.

The can bodles 42 with the endsloosely applied thereto are fed, in theresent case, by means of an endless travelmg belt 43, Fig. 1 of thedrawings, to successively place the can bodies onto the horizontallydisposed table 44 and within one of the peripheral pockets or cut-outs45 of the can feed wheel 46, the said can feed wheel acting as a timerto place the advanein cans with the ends loosely a plied thereto intimed and spaced relation, t e circular portions 47 of t e can feedwheel 46 intermediate of the "out-out portions'45 during the advancin ofone can serving to act as a guard for hol ing the cans back until thenext followingpocket or cut-out 45 engages and advances a can. The cansare thus advanced successivel by the ockets 45 of the feed wheel 46 anare gui ed in their path of travel by a curved extension wall 48, and,the said cans as advanced by the carrier wheel 46 are de osited ontoth'e rotatable rest 43 of the tab e 44, and when so positioned. are inaxial alinement with the can end chuck 17. The can carrier wheel 46 ismounted on a short vertical shaft 49 extended through a hub 49' of Y thetable 44, the said shaft 49 at its lower ex-' tremity "carrying aGenevawheel 50 which is engaged by a roll 51 of an arm 52 secured to andpro ectin from the shaft 53 working in bearingsfof t 0 frame 1, and ahub extension 44' of the table 44 (Fig. 2 of the drawings).

Rotation is im arted to the shaft 53 from the drive shaft 4y means ofthe intermeshing lgears 54 and 54' mounted respectively on t e saidshafts 53 and 4, while Intermittent motion is transmitted to the cancarrier wheel 46 from the shaft 53 through the medium of the Genevamechanism 50, 51 and 52,- before described.

In the o eration of the machine, assuming a can y 42'with an end41'loosely applied thereto to be positioned on the ro tatable can rest48, the cam following roller 34 working within the cam groove 25 of therotary headll first acts to lower the stem 16 carrying. the can endchuck 17 to cause the same to rest firmly onto the can cover or end 41and to clam the same onto the can body 42, thecalr b0 y at such timewith the end clamped thereto rotating freely with the rotary movement ofthe stem or spindle 28, while the cam following roll 84 working withinthe cam groove35 of the driven head 12-actin at the same time to lowerthe stem 27 o the seaming head 26 to place the flange 39 of the seamingroll 26' in radial alinement with the upper groove 40 of the can headchuck 17. The seaming head 26 is then oscillated by the action of thefinal the can end chuck durin n the cams 32 and 33 of the head 11 tomore a mia el aad a ilyn t r the flange 29 within as "grobve40 of thecan end chucki'no 'er tofga and hold the seamin' rollin rolperposltionrelative to the sai can en 0 uckand cause the lower 'groove- 38' thereof"to y properly act onto the seam ofthe rotatingcan for ini' tiallycurling thefian'ge o'fthe' amend relagage groove 40' and to cause the"second a seaming groove 38 to act on the seam for operation thereu nfor the hermetical sea ing thereof, it eing understood that during theseoperations the seaming roll 26' is rotated by frictional engagement ofit's seaming groove with thecan end and the engagement of the lien 39with the gage grooves of the can an chuck, which chuck with the clampedcan end and bed is driven at high rotatin s eed.

After the completion 0 t e seaming operation the seaming head isoscillated or moved radially to take the seaming roll from within thesphere of the can end chuck and the seam of the can,lafter which-the canhead chuck is raised by the cam follower roll 24 working within the camgroove 25 and the seamin head is likewise raised by the action of t ecam following roll 34 working with the cam groove 35.

The parts being thus returned to normal position in readiness to belowered to clamp a can end to a positioned can body and to double seamthe flange of the end of the can body. It will be seen from theforegoing that the seaming roll is positively held to the operation ofdouble seaming a can en to a can body by reason of the flange 29 movingsuccessively within the g ves 40 and 40' of the said can chuc t erebyaccurately gaging the seaming grooves 38 and 38' respectively action ofthe rotary head 11, but it is obvious that any number of can end chucksand seaming heads or mechanism may be employed and thrown into action bythe movement of the rotary head 11, and therefore I do not wish to beunderstood as limiting the invention to the emploment of a single seamin.head and can on chuck, but any number t ereof may be employedconsistent with structural racticability.

It will be understood that the operati parts of the apparatu areactuated m time relation, so that the can end chuck is lowered to clampa can end to a can body, on a can body with an end loosely appliedthereto being delivered onto the rotatable can seat :43, and that theseaming head is lowered and moved regularly toward and from the can onchuck after the same has clamped a can on to a can body to which it isto be double seamed.

Havi thus described the invention what is claim as new and desired to beprotected by Letters Patent is 4 1. An apparatus for the describedpurpoie, the same comprising means for hold- 125 a flanged can and anend to be hermetic y seamed to the flange thereof, the same including acan end chuck havin formed therein a plurality of circumferentiallydisposed age grooves, a seaming roll having forme 'therein a pluralityof seaming grooves and provided with a circumferential ange outwardlyprojecting therefrom, and

V rotary means for imparting vertical movement to the can end chuck andto the seamin roll and moving the said roll radially re ative to the canend chuck to place the flange of the said roll successively intoengagement with the grooves of the can end chuck and the grooves of thesaid seaming roll successively into engagement with the flange of saidcan for the hermetic seaming of the end thereto.

2. In an apparatus for the described purpose, the same comprising meansfor bolding1 a flanged can and an end to be hermeti ca y seamed thereto,the same including a can end chuck having formed therein a plura-lity ofcircumferential] disposed gage ves, a seaming roll havmg formed thereina plurality of seaming grooves and provided with an outwardly rojectingcircumferential flange above the said grooves, means for impartingvertical and rotary motion to the can end chuck, and mechanism for imarting vertical movement to the seaming ml and moving the same radiallyrelative to the can end chuck to place the flange thereof successivelyinto and out of enga out with the grooves of the said chuc and thegrooves of the said seamingroll successively into engagement with theflange of the can for the seamingof the end thereto.

3. In an apparatus for the described puroperative relation with the canend chuck, a

seaming roll carried 'by said head and having formed therein a pluralityof seamin grooves and provided with a circumferentia projecting flange,and means for moving said sad for successlvely placing the flange of itsseaming roll in horizontal alinement with the gage grooves of the canend chuck and moving the same radially to place its flange successlvelyinto and out of engagement therewith and the seaming grooves thereofsuccessively into engagement with the flange of the can for the seamingof the end thereto. 4. In an apparatus for seaming an end to a can body,the combination with a can end chuck havin formed therein a plurality ofend to be seamed thereto, the same including a can end chuck, havingformed therein a plurality of gage grooves, rotary mechanisms foractuating said means to cause the can end chuck to clamp and hold a canend to a can body, a seaming head adapted for movement axiallyandradially with respect tothe flan ed end of a clamped can, a seami rollcarried by said head and provided with a plurality of seaming groovesand an outwardly projected circumferentially disposed gage flange, andmeans for moving said se'amin head to place the flange of the seamingroli 'successively into and out of engagement with the grooves of thecan end chuck and to bring the seaming grooves thereof successively intoengagement with the flange of the can for the seaming of the endthereto.

6. In an apparatus for the described purpose the combination wlth arotary .and vertically nl ovabl; can mild chluck provided with a luraity 'o 'p era grooves, a sea ining roll hasi n g formed min a pluralityof seaming grooves and provided with an outwardly projected.circumferential gage flange, and mechanism for moving the seaming rollaxially and radiallti with res to the can end chuck to place e flangeereof successively into engagementwith the gage grooves of the saidchuck. v

7. In an apparatus for the described purpose, the combination withrotary means for receiving and clamping cans with ends loosely appliedthereto, the same'including a can end chuck provided with a plurality ofgage grooves therein, devices for delivering cans with ends looselyapplied thereto to said means, a seamingroll having formed therein aplurality of peripheral seaming grooves and provided with an outwardlyprojected circumferential age flange, and means for moving theseammgroll for placing the gage flange thereof successive-l intoengagement with the gage grooves of t e can end chuck and the seamlnggrooves into'engagement successively with the flange of a held can forthe hermetic seaming of the end thereto.

8. In an apparatus for the described purpose,*the combination with meansfor receiving and holding a flanged can with an end loosely applied forhermetic seaming there to, the same including a can end chuck havingformed therein peripheral gage grooves in different horizontal planes, aseaming roll provided with an outwardly projecting circumferential gageflange and formed with peripheral seamin grooves in different horizontalplanes, anr l seaming roll with respect to the can end chuck to placethe gage flange thereof into engagement successively with the grooves ofthe said chuck and the seaming grooves thereof into engagementsuccessively with the flange of the held can for the seaming of the endthereto.

9. In an apparatus for the described purpose, the com ination withmechanism for holding a flanged can with an end to be united looselyapplied thereto, the same including acan end chuck with peripheral gagegrooves in different horizontal planes, of an auxilia and radiallymovable seam.- ing roll provided with an outwardly projectedcircumferential gage flange and formed with a plurality of peripheralseaming grooves and means for moving the said seaming roll forsuccessively placing the gage flange thereof into radial. alinement withthe gage grooves of the can end chuck and moving the same intoengagement there with and the seaming grooves thereof successively intoengagement with the flange of a held can for hermetically seaming theend thereto.

10. In an apparatus for the described purpose, the combination with asupport provided with a horizontall rotating member for the reception ofcan bodies with an end loosely applied thereto, means for deliveringsuccessive to said member flanged cans wlth ends oosely applied thereto,a can end chuck havmg a plurality of gage grooves means for moving saidI 'roll to place the gage flange thereof into engagement successlvelywith the gage grooves of the can end chuck and its seaming groovessuccessively into engagement with the flange of a held can for thedouble seaming of the end thereto.

11. In an apparatus for seaming ends to can bodies, the combination witha rotatable seat for receiving and sup orting can bodies with the endsloosely app ied thereto, a can end chuck provided with a plurality ofperipheral gage grooves, means for actuating said chuck to clamp the canbody with its applied end to the rotatable seat and for impartingrotation thereto, a seaming roll formed with a plurality of peripheralseaming grooves and an outwardly projecting gage flange. and means formoving the said seaming roll axially and radially'with respect to thecan end chuck to place the gage flange thereof into engagementsuccessively With the gage grooves of the can end chuck and the seamingrooves successively into engagement with the flange of the can forhermetically seaming the end thereto.

12. An apparatus for the described purpose, the same comprising a canend chuck for holding a can end to a can body during the operation ofdouble seaming and having formed therein a plurality ofcircumferentially disposed gage grooves, rotary means for impartingvertical and rotary movements to the said can end chuck, a seaming rollhaving formed therein a plurality of seaming grooves and provided with acircumferential flange adapted to bemoved successively into and out ofengagement with the gage grooves of the can end chuck. and meansactuated by the mentioned rotary means for actuating the seaming roll toplace the gage flange thereof successively into engagement with thegrooves of the can end chuck and the seaming grooves Ofthe said rollsuccessively into engagement with the flange of a clamped can forhermetically seaming of the end cover thereto.

13. In an apparatus for the described purpose, the combination with avertically movable rbtary can end chuck provided with a plurality ofperipheral gage grooves, of axially and radially movable seaming meansadapted to be moved into engagement successively with the gage groovesof the can end chuck, and devices for actuating said seaming means forproperly positioning the flange thereof into and out of ment same withrespect to the can end chuck. sue 'vely with the gage grooves of the 14.In an apparatus for hermetically can ens chuck. seaming can endstocanbodies, the combina.- In testimony whereof I have signed my 5 tion witha can end chuck provided with a. name to this specification in thepresence of 18 plurality of peripheral gage grooves, of a twosubscribing seaming r011 provided with an outwardly AEL JOHNSON.projected gage flange and adplurality of pe- Witn: ripheral seaminggrooves, an 7 means for 110- N. A. Aoxnn,

10 uating the seeming roll to place the gage S. Comm-mm.

